Segmentation from Examples - PowerPoint PPT Presentation

Segmentation from Examples. By: A’laa Kryeem Lecturer: Hagit Hel-Or. What is Segmentation from Examples ?. Segment an image based on one (or more) correctly segmented image(s) assumed to be from the same domain Effective when making a semantic segmentation. Why to use Examples.

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In order to force pixels within each fragment to be labeled the same, and reduce complexity we specify the energy term E(L) (E(L) the value of a labeling scheme) in terms of fragments instead of pixels :

: cost of assigning fragment f to label L(f), weighted by the size of each fragment.

For pixels p,q even with similar colors the graph-cuts step won’t care about connecting them to different labels because of small value. Even with big value at1-multiplying still give us small E value.